Electric shaver



April 14, 1942. s. e. HINES ELECTRIC SHAVER FiledOct. 16, 1937 INVENTOR.tar/e li/flhs BY 9 424/2 ATYURNEY.

Patented Apr. 14, 1942 UNITED STATES PATENT oF ce ELECTRIC SHAVER EarleG. Hines, West Milford, N. J., minor to General Theatres Equipment Coporation, New York, N. Y., a corporation of Delaware 'ApplicationOctober 16, 1931, Serial No. 169,369

4 Claims.

. Various types of electric shavers have heretofore been patented but sofar as I know none of these shavers has been provided with any means toinsure the correct positioning of the shaver relative to the skin of theuser. tion is frequently made to such shavers on the ground that ittakes a more or less prolonged use thereof to learn just how to hold theshaver so as to get the best results. One of the objects or thisinvention is to overcome such difliculties by providing a guide memberintegral with and attached to the motor housing so that when the userplaces the guide substantially flat against his skin the shavingimplement operated by the motor in the housing will be correctlypositioned so as to give the best possible shaving results. With such aguide it is unnecessary for the user to spend a prolonged period of timein learning how to use the shaver.

Another object of the invention is to provide a support for the guard orshell in which the rotary blade is mounted. This support not onlysupports the said guard but also protects the same in case the shavershould be inadvertently dropped. I have therefore provided on anelectric shaver a combined guide and support for the guard in which therotary blade is mounted, serving not only as a protection and as asupport for the said guard but also serving as a means to insure thecorrect positioning of the electric shaver relative to the face of theuser so that the best results will be obtained even though the user hashad very little experience with the electric shaver.

These and other objects will appear in the detailed specification andclaims which form a part hereof.

The invention may be the better understood by referring to the annexeddrawing in which Fig. 1 is a bottom plan view of the electric shaver;

Fig. 2 is a side elevational view thereof Fig. 3 is an-enlarged sideelevational view of the guard having the rotary blade therein, andshowing the connection between the rotary blade and the driving shaft;

Fig. 4 is a perspective view similar to Fig. 3 but with the guardremoved;

Fig. 5 is a cross-sectional view on the line 5--5 of Fig. 2 looking inthe direction of the arrows; and

Fig. 6 is a cross-sectional view on the line 6-6 of Fig. 2 looking inthe direction of the arrows.

In the patent 01' John M. Wall and Leonard Objec- M. Thorn, 21,216,994,there is shown a rotary type electric shaver which operates on the sameprinci le as that described in this application except that in the saidpatent there was no guide provided. As shown in this application ahousing it encloses an electric motor the electric current beingsupplied through a cable II. The motor drives a motor shaft l2 which isprovided with pins l3 which project into a slot l4 forming a part of arotary shaving member I5 and cutting blade IS. The rotary shaving memberl5 rotates within a guard I! which is provided with longitudinallyextending grooves l8 and the housing is providedwith tongues H whichproject into the said grooves It so as to hold the guard againstrotation and to insure that the guard cannot be inserted into thehousing except in a predetermined position. The guard is cut away at itssides as is clearly shown in Fig. 6 so as to form cutting edges 20 sothat if the blades '"5 rotate in a clockwise direction as viewed in Fig.6 the blade will engage the hairs 2i and will cut the same. The guard I1is also provided with slots 22 which extend circumferentially of theguard for a short distance thereby forming combs between the said slotswhich guide the hairs into the cutters. As above mentioned the guard I1is cut away at its sides thereby forming a plane 23 which is tangentialto the circle formed by the rotation of the periphery of the bladesthereby forming a narrow slot 24 extending lengthwise or the guard andpositioned between the cutting edges 20 and the teeth between the slots22.

he best results are obtained by holding the implement so that the plane23 will be flat against the surface of the skin of the user. In order toinsure that the user will so hold the electric shaver, I have providedan extension of the housing forming a guide 25 having substantially flatsurfaces 26. The object of the guide 25 is that if the user will placeone of the opposite surfaces 26 against his face or the part to beshaved, the guard and rotary blade will be positioned so as to give thebest results in shaving. The surfaces 26 need not be precisely flat forit is not absolutely essential that the shaver be held in a preciseposition but if the guide is so formed that it will insure the correctposition of the guard and cutter it is obvious that the best resultswould be obtained.

It will be noted that the housing It is substantially oblong but is ofsuch configuration as to nicely fit into the hand of the user. I preferto make the guide 25 as an integral part of the housingand to form acbntinuation thereof; but

' from the results to be obtained the guide might be made separate. Notonly is the guide 26 a positioning means or indicator but it will benoted that the part 21 thereof which is immediately adjacent the guardforms the arc of a circle and the guard l1 rests against this are of acircle formed by-the guide so as to support the guard throughout thelength of the guard.

It is therefore apparent that the guard. is nested against the gui'de'and that incase the-electric shaver should be inadvertently dropped onthe floor in such a position that the guard first struck the floor theguide would support the guard and would protect it from material injuryand from breaking the housing in which the guard was I have used theexpression shaving mechanism in the attached claims as referring to therotary blade and guard; that is, in the claims where I have used theexpression shaving mechanism,

I do not mean to include the housing and the motor carried by thehousing, or the guide.

I realize that many changes may be made in the specific form orembodiment of the invention which is shown by way of illustration inthis application, and I therefore reserve the right to make all changesor modifications relating to the same. I furthermore desire to claim theinvention broadly except as I may limit myself in the appended claims.

Having now disclosed my invention, I claim:

1. In an electric shaver, an elongated housing, a guide member havingside faces forming an extension of said housing, said side faces of saidmember being substantially parallel with the central plane through thewidth of said housing, a guard having a circular bore and havinglongitudinally extending slots on opposite sides of said guard, the sideof each of said slots forming a cutting edge, said cutting edges beingin substantially the same planes as said faces and a rotary cutter insaid bore adapted to cut whiskers between said cutter and edges.

2. In an electric shaver, an oblong housing, a guide provided withsubstantially flat faces forming a continuation of said housing, a guardprovided with a longitudinally extending bore, said guard being carriedby said housing and extending along said guide, said guard beingprovided with fiat faces on itsopposite sides forming planes tangentialto said bore, said tangential planes being substantially continuationsof the fiat faces of the guide and a rotary cutter within; said bore.

3. In an electric shaver, an oblong housing, a guide provided withsubstantially flat faces forming a continuation of said housing, a guardprovided with a longitudinally extending bore, said guard being carriedby said housing and extending along said guide, said guard beingprovided with flat faces on its opposite sides forming planes tangentialto said bore, said tangential planes being substantially continuationsof the fiat faces of the guide and a rotary cutter within said bore,said guard being provided with a longitudinally extending narrow slotforming a cutting edge to coact with said cutter.

4. In an electric shaver, an oblong housing, a guide provided withsubstantially fiat faces forming a continuation of said housing, a guardprovided with a longitudinally extending bore, said guard being carriedby said housing and ex tending along said guide, said guard beingprovided with flat faces on its opposite sides forming planes tangentialto said bore, said tangential planes being substantially continuationsof the fiat faces of the guide and a rotary cutter within said bore,said guard being provided with a longitudinally extending narrow slotforming on one side of said slot a cutting edge to coact with saidcutter, said guard being provided with a comb on the other side of saidslot.

EARLE G. HINES.

